n. A joint in which a section of a cylinder of one bone fits into a corresponding cavity on the other, permitting rotating movement, as in the proximal articulation between the radius and ulna.
Medical Definition of pivot joint : an anatomical articulation that consists of a bony pivot in a ring of bone and ligament (as that of the dens and atlas) and that permits rotatory movement only — called also trochoid Learn More about pivot joint Also called rotary joint, trochoid joint. Features
The rotation of the skull is made possible by a pivot joint. Pivot joint, also called rotary joint, or trochoid joint, in vertebrate anatomy, a freely moveable joint (diarthrosis) that allows only rotary movement around a single axis. In animal anatomy, a pivot joint (trochoid joint, rotary joint, lateral ginglymus) is a type of 3. a person or thing on which something turns, hinges, or depends: She was the pivot of the campaign's success. pivot joint. A joint in which a section of a cylinder of one bone fits into a corresponding cavity on the other, permitting rotating movement, as in the proximal articulation between the radius and ulna. In this joint, a cylinder shaped bone rotates inside another ligament that forms a ring around the joint. Another pivot joint joins the opposite end of the radius to the opposite end of the ulna close to the wrist. Also called A synovial joint in which a section of a cylinder of one bone fits into a corresponding cavity on the other. The joint between the atlas and the axis which is right under the skull, allows the turning of the head from side to side.
Login In each case the ring is composed of fibrous tissue, part of which is converted into cartilage…
Also called rotary joint, trochoid joint.
Categories The pivot joint is exemplified by the joint between the atlas and the axis (first and second cervical vertebrae), directly under the skull, which …
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Pivot joint is a synovial joint in which the ends of two bones connect. In some joints, the cylinder rotates inside the ring.
Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. The pivot, or trochoid, joints are of two forms: in one a pivot rotates within a ring; in the other a ring moves around a pivot.
n. A joint in which a section of a cylinder of one bone fits into a corresponding cavity on the other, permitting rotating movement, as in the proximal articulation between the radius and ulna.
The moving bone rotates within a ring that is formed from a second bone and adjoining ligament. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica.Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. Our editors will review what you’ve submitted and determine whether to revise the article. Encyclopaedia Britannica, 11th Edition, Volume 15, Slice 5 | Various. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only.
pivot joint.
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